Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Buraidah, Saudi Arabia.
University of Texas Health Science Center in Houston, Houston, TX, USA.
Int J Paediatr Dent. 2022 Jan;32(1):66-81. doi: 10.1111/ipd.12793. Epub 2021 Apr 25.
Preformed metal crowns (PMCs) have been the restoration of choice for paediatric dentistry; however, PMCs have a non-aesthetic appearance, which has become a point of concern. Recently, prefabricated zirconia crowns (PZCs) have been increasingly used as an aesthetic restorative material for primary teeth, as they have pleasing properties.
This systematic review summarises the clinical results for PZCs in the primary dentition, including wear on the opposing dentition, retention, fracture resistance, parental satisfaction, gingival health, and cementation materials.
Electronic database searches were conducted using PubMed, Google Scholar, Web of Science, and the Cochrane Library. Clinical trials, observational studies, and case reports/series were included. The quality of the studies was analysed using the Cochrane tool and the domain-based evaluation for non-randomised studies of interventions.
The search retrieved 166 references, of which 14 studies were included for qualitative analyses. The risk of bias varied from low to unclear. The included studies indicated that prefabricated zirconia crowns are retentive and are not associated with accelerated wear on the opposing dentition. They also exhibit a high fracture resistance, satisfy the parents and are compatible with gingival health. There is, however, inconclusive evidence with regard to cementation materials.
Prefabricated Zirconia Crowns appear to be a good alternative to preformed metal crowns in term of esthetics, retention, resistance to fracture, parent satisfaction, and gingival health.
预成金属冠（PMCs）一直是儿童牙科修复的首选；然而，PMCs 的美观度较差，这已成为人们关注的一个问题。最近，预制氧化锆冠（PZCs）作为一种美观的乳牙修复材料越来越多地被使用，因为它们具有令人愉悦的特性。
本系统综述总结了 PZC 在乳牙中的临床效果，包括对颌牙的磨损、保留率、抗折强度、家长满意度、牙龈健康和粘结材料。
通过 PubMed、Google Scholar、Web of Science 和 Cochrane 图书馆进行电子数据库检索。纳入了临床试验、观察性研究和病例报告/系列。使用 Cochrane 工具和干预措施的非随机研究的基于领域的评估对研究质量进行了分析。
检索到 166 篇参考文献，其中 14 项研究纳入定性分析。偏倚风险从低到不确定。纳入的研究表明，预制氧化锆冠具有固位力，且不会导致对颌牙加速磨损。它们还具有较高的抗折强度，能满足家长的需求，并与牙龈健康相兼容。然而，粘结材料的证据尚不确定。
预制氧化锆冠在美观、保留率、抗折强度、家长满意度和牙龈健康方面似乎是预成金属冠的良好替代品。
